The OnQ legrand HT7801 evoQ 7000 Series 8 Inch In-Wall Speaker, 250W is made of a tough semi-flexible plastic frames that features a built in foam gasket to minimize vibration and maximize seal-ability. The Speaker also features a perforated metal grill with an acoustically transparent scrim cloth to enhance the speakers appearance once installed. All evoQ speakers, except sub woofers, are paint-able. They also come with painting shields to protect the drivers while painting. These speakers are suitable for moisture rich environments. They also feature flip out tabs for easy installation and removal. The OnQ legrand evoQ 7000 speakers include a switch under the cover labeled "Treb" that has a (-) setting for bright rooms with hard surfaces or (+) setting for damped rooms with low reflections due to carpet, rapes, and upholstered furniture. They also include a 1/2" knockout for an IR Target (sold separately).